The report presents the results of the third phase of a research program to develop a behavioral taxonomy of undergraduate pilot training (UPT) tasks and skills. The third phase effort consisted of surface analyses of 50 UPT flying training tasks to generate basic task descriptions. The surface analysis subdivided and defined task elements into a series of cue, mental action, and motor action sequences. A set of classification rules was developed to categorize the skills needed to perform the tasks identified by the surface analysis information. The classification rules were used to classify all the surface analyses. The skills required to accomplish the tasks were determined and organized into a matrix system of skill data. The matrix system selected provided the means for simple data retrieval operations. The result was to develop the surface analysis method in order to analyze future UPT objectives in terms of present and future flying training requirements and to develop four applications of the taxonomic data system to flying training research problems. The illustrative examples dealt with skill comparisons among different tasks, the determination of skill difficulty within and between tasks, developing standard training tasks and generating new training tasks to teach specific flying skills. (Author/JB)